Area Code Lookup
What Area Code Is Mountain Pass?
Area code 442 · California
Mountain Pass uses area code 442. It is located in California.
Area Code Serving Mountain Pass
Frequently Asked Questions
What area code is Mountain Pass?
Mountain Pass uses area code 442. It is located in California.
How do I call Mountain Pass from outside the US?
To call Mountain Pass from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-442-XXX-XXXX). The +1 is the country code for all NANPA countries.